Striking occult iconography on a medieval German church.

This plaque marks the former home of one of the first women physicians in the Netherlands.

The world's largest bicycle shelter can hold more than 12,500 two-wheelers.

Atop this former dutch railway office sits an interstellar work of art.

This towering church is home to a world-famous organ and a treasure trove of medieval art.

This still-celebrated home was a radical architectural experiment in 3D De Stijl.

A grassy pyramid named after a French battle.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

Europe's official "zero-level," the equator of elevation.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

This unattributed sculpture in Amsterdam is hiding in plain sight.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

If you visit Santa's village, you can get your passport stamped to show you crossed into the Arctic Circle.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.

The world's first ice hotel is still one of the most elaborate and beautiful.

The world's northernmost aquarium looks like it has fallen over.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

The world's largest second-hand graces a clock surrounded by constantly changing flower beds. 

Twisted buildings adorn the banks of the Rhine river.